Auto Stop/Start during warmup

[rocknob]

Is there an auxiliary heater on the Gti too?  I have never known a car warm up as fast as the Gti

The GTi has feature called Innovative Thermal Management which is basically an electronically controlled thermostat which amongst other things makes it warm up very quickly. The system is designed that when the car is cold the water only circulates through the engine. Once the engine is warm it opens the heater matrix for heating the inside of the car and then only does it open the radiator.

It also cools the turbo when you turn the car off.

[iandjm]

Now that is clever 

Many thanks

Ian

[rocknob]

I've been trying to figure out one of the conditions that disables the auto stop/start during engine warmup.

The conditions for the Stop/Start to work are as follows.
The vehicle is stationary (speed = 0km/h).
The engine speed is below 1200rpm
The coolant temperature is between 25°C and 100°C.
The brake vacuum is more than 550mbar
The energy required to restart the engine that was calculated before “engine off” can be supplied
by the battery (starting voltage prediction).
The battery temperature is greater or equal to -1°C and less than 55°C.
The air-conditioning requirement of the occupants is not too high.
The difference between target and actual vent temperature is below 8°C.
The diesel particulate filter is not in regeneration mode (diesel engines only).

[jivemonkey]

Is there an auxiliary heater on the Gti too?  I have never known a car warm up as fast as the Gti

The GTi has feature called Innovative Thermal Management which is basically an electronically controlled thermostat which amongst other things makes it warm up very quickly. The system is designed that when the car is cold the water only circulates through the engine. Once the engine is warm it opens the heater matrix for heating the inside of the car and then only does it open the radiator.

It also cools the turbo when you turn the car off.

That's going to be a bugger if the actuator fails on the radiator circuit 

[corgi]

Is there an auxiliary heater on the Gti too?  I have never known a car warm up as fast as the Gti

The GTi has feature called Innovative Thermal Management which is basically an electronically controlled thermostat which amongst other things makes it warm up very quickly. The system is designed that when the car is cold the water only circulates through the engine. Once the engine is warm it opens the heater matrix for heating the inside of the car and then only does it open the radiator.

It also cools the turbo when you turn the car off.

That's going to be a bugger if the actuator fails on the radiator circuit 

This is the way cars have worked for years with a standard "mechanical" based thermostat. When cold the heater/radiator circuit is blocked by the thermostat until the temperature when the thermostat opens... so the system on the Golf is a little more selective but no much...

[iandjm]

Yep it's very clever splitting the block and cylinder head circuits:

http://www.audi.com/com/brand/en/models/efficiency/efficiency_technologies/energy_management/thermal_management.html

[Gingernick]

nice vid...it really is noticeably different from the last car..warm air and warm engine in what seemed like just a few minutes

[rocknob]

Is there an auxiliary heater on the Gti too?  I have never known a car warm up as fast as the Gti

The GTi has feature called Innovative Thermal Management which is basically an electronically controlled thermostat which amongst other things makes it warm up very quickly. The system is designed that when the car is cold the water only circulates through the engine. Once the engine is warm it opens the heater matrix for heating the inside of the car and then only does it open the radiator.

It also cools the turbo when you turn the car off.

That's going to be a bugger if the actuator fails on the radiator circuit 

There is an emergency "pop off valve" built in if the thermostat fails.

[CraigW]

Ive noticed recently that me stop/start has not been activating even on occasions when its been above 8 degrees (very rare occurence in Scotland  ). The message im constantly getting back is high consumption of energy but the heating is sitting at about 20 degrees usually. I have the climate control sitting on auto and dont know if this is causing the issue.

Also does the stop/start work when your in eco mode? 

[jivemonkey]

Ive noticed recently that me stop/start has not been activating even on occasions when its been above 8 degrees (very rare occurence in Scotland  ). The message im constantly getting back is high consumption of energy but the heating is sitting at about 20 degrees usually. I have the climate control sitting on auto and dont know if this is causing the issue.

Also does the stop/start work when your in eco mode?

Interesting! When trying out a recent VCDS tweak to disable the start stop I always had this message on in the Start Stop status menu, it was the minimum/ maximum operating temperature that was changed to achieve it. Hard to believe 8 degrees is too low! I've had it work much lower. Anyway, once I changed it back it functioned fine. Can only assume there's another reason behind the cryptic message which VW don't want you to know..

Start stop works in all driving modes.